60V High-Current Step-Down LED Driver Controller

July 01, 2013 // By Electronics EETimes

Although a 350mA LED could easily earn the stamp of “high power” a few years ago, now, 5A to 40A LEDs and laser diodes are used in the DLP projector, surgical equipment, stage lighting, automotive lighting and other applications traditionally served by high intensity bulbs. To meet the light output requirements of these applications, high power LEDs  are often used in series. The new LT®3763 is a 60V synchronous, step-down DC/DC controller designed to accurately regulate LED current at up to 20A with fast PWM dimming.